Also this year, I think they are doing interviews before the physical testing (I believe in the past, it was the opposite). So I believe the physical testing portion doesn't happen until later in the week (Thursday or Friday).
Before people freak out at how Frk and Faksa could have more interviews than the highly rated guys:
I remember a quote from Trevor Timmins around the 2008 draft saying they hadn't even bothered using up time to interview Stamkos that year because since they were picking 25th they knew they had no shot at him. It seems like several teams have this philosophy.
IIRC, every single one of Tavares, Hall, Seguin, RNH, Yakupov, and Stamkos had at least 10 interviews, and none of those picks have been traded.
It's teams simply doing their own due diligence. Some teams have no intentions of making a play for the pick and want to focus on more guys they like in their area, so they don't bother interviewing top players.
To suggest the pick is more in play based on number of interviews is a bit strange.